This post explains for the MOSFET.
The Part Number is K3868, 2SK3868.
The function of this semiconductor is 500V, 5A, N-channel MOSFET.
Manufacturer: Toshiba Semiconductor
Preview images :
1 page ( Pinouts: 1. Gate, 2. Drain, 3 Source )
Description
This is Silicon N-Channel MOS Type Field Effect Transistor.
Features
1. Low drain-source ON resistance: RDS (ON) = 1.3 Ω (typ.)
2. High forward transfer admittance: |Yfs| = 3 S (typ.)
3. Low leakage current: IDSS = 100 μA (VDS = 500 V)
4. Enhancement model: Vth = 2.0 to 4.0 V (VDS = 10 V, ID = 1 mA)
Absolute Maximum Ratings (Ta = 25°C)
1. Drain to source voltage: VDSS = 500 V
2. Gate to source voltage: VGSS = ± 30 V
3. Drain current: ID = 5 A
4. Drain Power Dissipation: Pd = 35 W
5. Channel temperature: Tch = 150 °C
6. Storage temperature: Tstg = -55 to +150 °C
Applications:
1. Switching Regulator
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Applications:
1. Switching Regulator